The EFR (Engineered For Racing) turbochargers from BorgWarner offer an unprecedented combination of advanced technologies:

  • Low-weight Gamma-Ti turbine wheels and shaft assemblies for quick boost response
  • Patent-pending dual ceramic ball bearing cartridges for more thrust capacity, durability and turbine efficiency at low expansion ratios
  • Stainless steel turbine housing for increased efficiency, improved durability and corrosion resistance
  • Range of units supporting 225 to 1,000 horsepower per turbocharger

The EFR 7670 is an excellent choice for 400-600hp street-driven or autocross vehicle where quick spool and excellent response is required.

Compressor Specifications

  • Compressor Type: Forged-Milled Wheel (FMW) Extended Tip
  • Compressor Wheel OD (exducer): 76mm
  • Compressor Wheel Inducer: 57.2mm
  • Max Flow Rate: 64 lb/min
  • Built-in BOV: All EFR compressor housings incorporate an integrated BOV.
  • Compressor Housing Connections: [list] [*]Inlet: 3.5″ Hose Coupler
  • Outlet: 2.0″ Hose Coupler

Turbine Specifications

    • Turbine Type: Low Inertia Gamma-Ti Turbine Wheel
    • Turbine Wheel OD: 70mm
    • Stainless Steel Sand cast Housing


The EFR 7670 is available in (3) different turbine housing configurations.

Please contact us for your desired configuration as this may affect pricing.

  • 0.83 A/R T3 Single Scroll (Internal WG) – Part # 179351
  • 0.92 A/R T4 Twin Scroll (Internal WG) – Part # 179390
  • 1.05 A/R T4 Twin Scroll (external WG) – Part # 179392
  • Turbine outlet: GT-Vband (aka small 3″ vband) ~92mm OD for all EFR turbos






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